org.objectweb.asm.tree.LookupSwitchInsnNode Maven / Gradle / Ivy
// ASM: a very small and fast Java bytecode manipulation framework
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package org.objectweb.asm.tree;
import java.util.List;
import java.util.Map;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
/**
* A node that represents a LOOKUPSWITCH instruction.
*
* @author Eric Bruneton
*/
public class LookupSwitchInsnNode extends AbstractInsnNode {
/** Beginning of the default handler block. */
public LabelNode dflt;
/** The values of the keys. */
public List keys;
/** Beginnings of the handler blocks. */
public List labels;
/**
* Constructs a new {@link LookupSwitchInsnNode}.
*
* @param dflt beginning of the default handler block.
* @param keys the values of the keys.
* @param labels beginnings of the handler blocks. {@code labels[i]} is the beginning of the
* handler block for the {@code keys[i]} key.
*/
public LookupSwitchInsnNode(final LabelNode dflt, final int[] keys, final LabelNode[] labels) {
super(Opcodes.LOOKUPSWITCH);
this.dflt = dflt;
this.keys = Util.asArrayList(keys);
this.labels = Util.asArrayList(labels);
}
@Override
public int getType() {
return LOOKUPSWITCH_INSN;
}
@Override
public void accept(final MethodVisitor methodVisitor) {
int[] keysArray = new int[this.keys.size()];
for (int i = 0, n = keysArray.length; i < n; ++i) {
keysArray[i] = this.keys.get(i).intValue();
}
Label[] labelsArray = new Label[this.labels.size()];
for (int i = 0, n = labelsArray.length; i < n; ++i) {
labelsArray[i] = this.labels.get(i).getLabel();
}
methodVisitor.visitLookupSwitchInsn(dflt.getLabel(), keysArray, labelsArray);
acceptAnnotations(methodVisitor);
}
@Override
public AbstractInsnNode clone(final Map clonedLabels) {
LookupSwitchInsnNode clone =
new LookupSwitchInsnNode(clone(dflt, clonedLabels), null, clone(labels, clonedLabels));
clone.keys.addAll(keys);
return clone.cloneAnnotations(this);
}
}